Note: Note: Do not install a drive with the internal EMC filter connected to a system
that the filter is not suitable for. This can cause danger, or damage the drive.
Note: Do not install a drive with the ground-to-phase varistor connected to a
system that the varistor is not suitable for. If you do, the varistor circuit can be
damaged.
If you install the drive to any other system than symmetrically grounded TN-S
system, you may need to disconnect the EMC filter or the ground-to-phase varistor.
See Grounding system compatibility check (page 93).
￭
Category C3
The drive complies with the standard with the following provisions:
• The motor and control cables are selected as specified in this manual.
• The drive is installed according to the instructions given in this manual.
• For the maximum motor cable length with 4 kHz switching frequency, see
section Motor connection data (page 200).
WARNING! A drive of category C3 is not intended to be used on a low-voltage
public network which supplies domestic premises. Radio frequency
interference is expected if the drive is used on such a network.
Note: Do not install a drive with the integrated EMC filter connected to a system
that the filter is not suitable for. This can cause danger, or damage the drive.
Note: Do not install a drive with the ground-to-phase varistor connected to a
system that the varistor is not suitable for. If you do, the varistor circuit can be
damaged.
￭
Category C4
The drive complies with the C4 category with these provisions:
1. It is made sure that no excessive emission is propagated to neighboring
low-voltage networks. In some cases, the natural suppression in transformers
and cables is sufficient. If in doubt, a supply transformer with static screening
between the primary and secondary windings can be used.
208 Technical data
To Next Page
Loading...
